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Flow occurs over a spillway of constant section where depth of water in the upstream of...

Flow occurs over a spillway of constant section where depth of water in the upstream of the spillway is 8 m and the depth of water in the downstream of the spillway is 3 m. Determine the resultant horizontal force on the spillway per meter of spillway width (perpendicular to the spillway section). Assume ideal flow i.e. head loss is zero.

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